With certainty, it has to be Remon from Ano Natsu de Matteru. I just couldn't understand her motives what-so-ever, I really though she was just a total @$$hole. Then I learned, and wow is all I can say!

People like Kirino? Pretty sure she's a demon that snuck into their family and is waiting for the opportune moment to eat all of them. Like Kyosuke says "Thats not Kirino. That's something wearing Kirino's face". Best reveal ever!

And it's not an anime, but I really hated Fi from Skyward Sword when I first started playing. She's such a Captain Obvious. But I've grown to laugh at her and now she's the amusing point of the game for me.

Harpie and gamma from sora no otoshimono. If you read the manga then you'll see why.

I can't wait. I started reading the manga, but still a bit behind.

Let's see, I never "hated" a character that I ended up liking. I was close to hating Bando (I don't like assholes in anime or manga) 'til I read the Elfen Lied manga (god, did that tore me apart from the inside)

However, there were two characters I didn't like at first...from Dragonball Z. GASP!

Yajirobe. My first time seeing him was when he was eating during the interview at the Saiyan Saga (I was 11 at the time). But as I got older, he slowly grew onto me 'cause he's a funny smart ass.

Same for Hercule Satan. I didn't like him at first during the Cell saga, but I ended up liking him during the entire Majin Buu saga and found him to be funny.

I hated her mainly because fate stay night pretty much made me hate all of its characters. That all changed when I saw FATE/ZERO. Now she's my favorite female character, maybe even my all time fav haha

I hated her mainly because fate stay night pretty much made me hate all of its characters. That all changed when I saw FATE/ZERO. Now she's my favorite female character, maybe even my all time fav haha

I agree. Fate Stay Night sucks. No real action, it actually looked like some bad romance. I hate the main male character and saber. However when I watched Fate Zero I changed my mind. Fate Zero was epic, soundtrack too. Action, all seven servants were great especially Gilgamesh, so were the masters. my favorite character was definitely Kiritsugu Emiya.
Another character that I hated at the beginning was Edward from FMA, but after I don't know exactly about 25 episode I started to like him . . .

During the first season, I hated her and was in the constant mindset of 'ew you dumb bitch, get out of the way of my yaoi lololol', but since the second season and growing out of my dumb yaoi phase, I've began to kind of appreciate her character a lot more. I mean, sure, she's still not that interesting, but I've learn't not to expect much from heroines in reverse-harem series. Especially since she's just the canvas character for people playing the original dating sim. She's blank so the players could project themselves into the game, so yeah.

Aomine Daiki (Kuroko's Basketball)
I hated him at first cos he was such an ass but once I got to see him play basketball, he was such a hot badass! LOL
Manabe (Kotoura-san)
At first he was just really annoying but later on he was so cool and stuff cos he was so nice to kotoura. xD

I hated her mainly because fate stay night pretty much made me hate all of its characters. That all changed when I saw FATE/ZERO. Now she's my favorite female character, maybe even my all time fav haha

I agree. Fate Stay Night sucks. No real action, it actually looked like some bad romance. I hate the main male character and saber. However when I watched Fate Zero I changed my mind. Fate Zero was epic, soundtrack too. Action, all seven servants were great especially Gilgamesh, so were the masters. my favorite character was definitely Kiritsugu Emiya.
Another character that I hated at the beginning was Edward from FMA, but after I don't know exactly about 25 episode I started to like him . . .

Yep Kiritsugu and Gligamesh were awesome. Theres almost no character in that show I didn't like. Even the wimp grew on me haha. I could understand why you didn't like Edward at first. I liked him from start to finish but I noticed traits of his that probably others would not find as appealing at least in the beginning.